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S7700 No Multicast trafic...

S7700 No Multicast trafic after activating multicast drop-unkown on a VLAN

Created: Jan 22, 2019 15:56:16Latest reply: Jan 24, 2019 10:56:21 378 2 0 0
  Rewarded HiCoins： 0 (problem resolved)
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I'm triing to set up a multicast network with about 35 multicast groups in a single VLAN

All groups apear on interfaces of that VLAN so I activated multicast drop-unkown on a VLAN, after that, no more multicast trafic on hosts.

I can see  l2-multicas forword-table groups and on igmp-snooping port-info.

Multicast source is on int gi5/0/12


Config:


!Software Version V200R010C00SPC600
#
sysname DTC Herdade
#
vlan batch 2 to 9 467 500
#
loopback-detect auto disable
#
set multicast forwarding-table super-mode
#
authentication-profile name default_authen_profile
authentication-profile name dot1x_authen_profile
authentication-profile name mac_authen_profile
authentication-profile name portal_authen_profile
authentication-profile name dot1xmac_authen_profile
authentication-profile name multi_authen_profile
#
assign multicast-resource-mode optimize
igmp-snooping enable
igmp-snooping send-query enable
igmp-snooping send-query source-address 10.0.0.1
#
telnet server enable
#
access-user arp-detect default ip-address 0.0.0.0
#
clock timezone UTC add 00:00:00
#
ecmp local-preference disable
#
arp learning ip-network-cross enable
#
dhcp enable
#
undo portal url-encode enable
#
set flow-change-ratio input-broadcast-detect disable
#
diffserv domain default
#
radius-server template default
radius-server shared-key cipher %^%#bX)B+Cm<cRZ#(rTECB/*6ANdQL9A)FcG7"3on0xO%^%#
#
free-rule-template name default_free_rule
#
portal-access-profile name portal_access_profile
#
drop-profile default
#                                        
vlan 500
multicast drop-unknown
igmp-snooping enable
igmp-snooping querier enable
#
aaa
authentication-scheme default
authentication-scheme radius
 authentication-mode radius
authorization-scheme default
accounting-scheme default
domain default
 authentication-scheme default
domain default_admin
 authentication-scheme default
local-user admin password irreversible-cipher %^%#hP~!"3Pm4-$#s35gvjw$(=nC1hFNIQ{b{*8S'`QMw^Pr>^~85+ZdOUN:"/GP%^%#
local-user admin privilege level 15
local-user admin ftp-directory cfcard:/
local-user admin service-type telnet terminal ssh ftp http
#
interface Vlanif2
description "VLAN 2 / Rede HDG
ip address 172.20.10.253 255.255.255.0
#                                        
interface Vlanif3
description "VLAN 3 / Tel. Clientes"
ip address 172.20.11.253 255.255.255.0
#
interface Vlanif4
description "VLAN 4 / Tel. Servicos"
ip address 172.20.12.253 255.255.255.0
#
interface Vlanif6
ip address 172.20.18.253 255.255.255.0
dhcp select interface
dhcp server ip-range 172.20.18.10 172.20.18.250
dhcp server gateway-list 172.20.18.253
#
interface Vlanif7
description "VLAN 7 / Gestao
ip address 172.20.19.253 255.255.255.0
#
interface Vlanif500
ip address 10.0.0.1 255.255.255.0
#
interface Ethernet0/0/0
#
interface GigabitEthernet2/1/0            
#
interface GigabitEthernet2/1/1
#
interface GigabitEthernet2/1/2
#
interface GigabitEthernet2/1/3
#
interface GigabitEthernet2/1/4
#
interface GigabitEthernet2/1/5
#
interface GigabitEthernet2/1/6
#
interface GigabitEthernet2/1/7
#
interface GigabitEthernet5/0/0
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/1
description "Rede Gestao"
port link-type access
port default vlan 7                      
#
interface GigabitEthernet5/0/2
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/3
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/4
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/5
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/6
description "Rede Gestao"
port link-type access                    
port default vlan 7
#
interface GigabitEthernet5/0/7
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/8
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/9
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/10
description "Rede Gestao"
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/11
description "Rede Gestao"                
port link-type access
port default vlan 7
#
interface GigabitEthernet5/0/12
description "Rede IPTV"
port link-type access
port default vlan 500
#
interface GigabitEthernet5/0/13
description "Rede IPTV"
port link-type access
port default vlan 500
#
interface GigabitEthernet5/0/14
description "Rede IPTV"
port link-type access
port default vlan 500
#
interface GigabitEthernet5/0/15
description "Rede IPTV"
port link-type access
port default vlan 500
#                                        
interface GigabitEthernet5/0/16
description "Rede IPTV"
port link-type access
port default vlan 500
#
interface GigabitEthernet5/0/17
description "Rede IPTV"
port link-type access
port default vlan 500

  • x
  • convention：

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chenhui
Admin Created Jan 23, 2019 01:19:26 Helpful(0) Helpful(0)

@ACorreia hi,
please check the multicast foward information, are there (s,g) items with unreserved multicast destination address. cause when configuring multicast drop-unknown, those traffic with reserved multicast destination address will not be forwarded either.
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  • convention：
All Answers
chenhui
chenhui Admin Created Jan 23, 2019 01:19:26 Helpful(0) Helpful(0)

@ACorreia hi,
please check the multicast foward information, are there (s,g) items with unreserved multicast destination address. cause when configuring multicast drop-unknown, those traffic with reserved multicast destination address will not be forwarded either.
  • x
  • convention：
ACorreia
ACorreia Created Jan 24, 2019 10:56:21 Helpful(0) Helpful(0)

Hi cWX611640, thanks for the help,
The (s,g) appears as (*,g), I didn't configure the ssm mapping. Yesterday I've done some testes and I discovered that it works with any group from 224.0.1.1 to 224.127.255.255. The same is true to all other groups from 224 to 239.
If I use, for example, 239.127.1.1 it works, but if I use 239.255.1.1, beside the MAC address is the same (01-00-5e-7f-01-01), it doesn't work.
I'm not sure, but it seams to bee related with multicast-hash-mode.
Next week I'll do some testes with that.
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